PHANGS-ALMA Data Processing and Pipeline

doi:10.3847/1538-4365/abec80

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/122453

請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122453

題名:	PHANGS-ALMA Data Processing and Pipeline
作者:	Leroy, Adam K.;Hughes, Annie;Liu, Daizhong;Pety, Jérôme;Rosolowsky, Erik;Saito, Toshiki;Schinnerer, Eva;Schruba, Andreas;Usero, Antonio;Faesi, Christopher M.;Herrera, Cinthya N.;Chevance, Mélanie;Hygate, Alexander P. S.;Kepley, Amanda A.;Koch, Eric W.;Querejeta, Miguel;Sliwa, Kazimierz;Will, David;Wilson, Christine D.;Anand, Gagandeep S.;Barnes, Ashley;Belfiore, Francesco;Bešlić, Ivana;Bigiel, Frank;Blanc, Guillermo A.;Bolatto, Alberto D.;Boquien, Médéric;Cao, Yixian;Chandar, Rupali;Chastenet, Jérémy;Chiang, I-Da;Congiu, Enrico;Dale, Daniel A.;Deger, Sinan;Brok, Jakob S. den;Eibensteiner, Cosima;Emsellem, Eric;Axel, García-Rodríguez;Glover, Simon C. O.;Grasha, Kathryn;Groves, Brent;Henshaw, Jonathan D.;Donaire, María J. Jiménez;Kim, Jaeyeon;Klessen, Ralf S.;Kreckel, Kathryn;Kruijssen, J. M. Diederik;Larson, Kirsten L.;Lee, Janice C.;Mayker, Ness;McElroy, Rebecca;Meidt, Sharon E.;Mok, Angus;Pan, Hsi-An;Puschnig, Johannes;Razza, Alessandro;Patricia, Sánchez-Bl'azquez;Sandstrom, Karin M.;Santoro, Francesco;Sardone, Amy;Scheuermann, Fabian;Sun, Jiayi;Thilker, David A.;Turner, Jordan A.;Ubeda, Leonardo;Utomo, Dyas;Watkins, Elizabeth J.;Williams, and Thomas G.
日期:	2021-07-19
上傳時間:	2022-03-10 12:10:43 (UTC+8)
摘要:	We describe the processing of the PHANGS–ALMA survey and present the PHANGS–ALMA pipeline, a public software package that processes calibrated interferometric and total power data into science-ready data products. PHANGS–ALMA is a large, high-resolution survey of CO(2–1) emission from nearby galaxies. The observations combine ALMA's main 12 m array, the 7 m array, and total power observations, and use mosaics of dozens to hundreds of individual pointings. We describe the processing of the u − v data, imaging and deconvolution, linear mosaicking, combining interferometer and total power data, noise estimation, masking, data product creation, and quality assurance. Our pipeline has a general design and can also be applied to Very Large Array and ALMA observations of other spectral lines and continuum emission. We highlight our recipe for deconvolution of complex spectral line observations, which combines multiscale clean, single-scale clean, and automatic mask generation in a way that appears robust and effective. We also emphasize our two-track approach to masking and data product creation. We construct one set of "broadly masked" data products, which have high completeness but significant contamination by noise, and another set of "strictly masked" data products, which have high confidence but exclude faint, low signal-to-noise emission. Our quality assurance tests, supported by simulations, demonstrate that 12 m+7 m deconvolved data recover a total flux that is significantly closer to the total power flux than the 7 m deconvolved data alone. In the appendices, we measure the stability of the ALMA total power calibration in PHANGS–ALMA and test the performance of popular short-spacing correction algorithms.
關聯:	The Astrophysical Journal Supplement Series 255(1), 19 (54 pages)
DOI:	10.3847/1538-4365/abec80
顯示於類別:	[物理學系暨研究所] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	129	檢視/開啟
PHANGS-ALMA Data Processing and Pipeline.pdf		28085Kb	Adobe PDF	1	檢視/開啟

在機構典藏中所有的資料項目都受到原著作權保護.

TAIR相關文章

資料載入中.....